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China wholesale 1.56 bifocal round top HMC ophthalmic lens eyewear lens optical lens
Home » Products » Bifocal/Progressive Lens » 1.56 RT Bifocal Lens » China wholesale 1.56 bifocal round top HMC ophthalmic lens eyewear lens optical lens
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China wholesale 1.56 bifocal round top HMC ophthalmic lens eyewear lens optical lens

  • 1.56 optical lens
  • AoGang
  • 9001509900
  • 1.56
  • 70MM
  • NK55 ( imported from Japan)
  • 42
  • 1.15
  • >97%
  • SPH: 0~ ±3.00, ADD: 1.00~ +3.00

Product Video

Product Description

1.56 Bifocal Round Top HMC Optical Lens
Diameter70 mm
MonomerNK55 (imported from Japan)
Specific Gravity1.15
Abbe value42
Round top segmen28
Transmission> 97%
Power rangeSPH: 0.00~+3.00 0.00~-3.00 ADD: +1.00~+3.50

Product Features

As people age, they may find that their eyes are not adjusting to distances as they used to. When people inch closer to forty, the lens of the eyes begin to lose flexibility. It becomes difficult to focus on close objects. This condition is called presbyopia. It can be managed to a large extent with the use of bifocals.

Bifocal (also can be called Multifocal) eyeglass lenses contain two or more lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age.

round top

Bifocal means that there are two different diopters on the same lens. The two diopter are distributed in different areas of the lens. The area for viewing far is called the far field, which is located in the upper part of the lens. The near zone is located in the lower half of the lens.

The object in the far distance can be seen through the far-field of a pair of lenses, and the close-range objects can be seen through the near-field of the same pair of lenses. You don't need to carry two pairs of glasses with you, you don't need to switch between distant and near-eye glasses frequently.

Coating Choice


Hard Coating(HC): To enhance the hardness of the lens to prevent the substrate scratch


Anti-reflection Coating(HMC/ AR): To protect the lens effectively from reflection, enhancing functional and charity of your vision


Super hydrophobic Coating(SHMC): To make the lens waterproof, antistatic, anti slip and oil resistance

Contact Us

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